Name: ERC FASTCORR Half-time workshop
Start: 2024-02-02T11:30:00+01:00
End: 2024-02-06T23:00:00+01:00
Location: Hemavans Högfjällshotell

ERC FASTCORR Half-time workshop

from Friday, 2 February 2024 (11:30) to Tuesday, 6 February 2024 (23:00)

Monday, 29 January 2024
Tuesday, 30 January 2024
Wednesday, 31 January 2024
Thursday, 1 February 2024
Friday, 2 February 2024

11:30 Arrival and chech-in
Arrival and chech-in
11:30 - 12:30

12:30 Lunch
Lunch
12:30 - 13:30

13:30 Arrival and check-in
Arrival and check-in
13:30 - 17:30

18:00 Dinner for early arrivers
Dinner for early arrivers
18:00 - 19:00

21:00 Dinner for those arriving by 20:30 plane
Dinner for those arriving by 20:30 plane
21:00 - 22:00
Saturday, 3 February 2024

08:00 Breakfast
Breakfast
08:00 - 09:00

09:00 Free time
Free time
09:00 - 10:40

10:40 Fika and discussion
Fika and discussion
10:40 - 11:00

12:00 Lunch
Lunch
12:00 - 13:00

13:00 Welcome
Welcome
13:00 - 13:20
Chair: Oscar Grånäs
13:20 Local and nonlocal electron and spin dynamics at Au/Fe/MgO(001) heterostructures - Uwe Bowensiepen (Universität Duisburg-Essen)
Local and nonlocal electron and spin dynamics at Au/Fe/MgO(001) heterostructures
- Uwe Bowensiepen (Universität Duisburg-Essen)
13:20 - 14:00
14:00 Spin fluctuation induced anomalous-Hall effect - Ola Forslund (University of Zurich)
Spin fluctuation induced anomalous-Hall effect
- Ola Forslund (University of Zurich)
14:00 - 14:40
14:40 Intriguing magnetic phenomena in 2D Fe5GeTe2 high temperature magnet with Co and Ni doping - Biplab Sanyal (Uppsala University)
Intriguing magnetic phenomena in 2D Fe5GeTe2 high temperature magnet with Co and Ni doping
- Biplab Sanyal (Uppsala University)
14:40 - 15:20
15:20 Information on discussion sessions
Information on discussion sessions
15:20 - 15:40

15:40 Discussion 1
Discussion 1
15:40 - 16:20

16:20 Fika
Fika
16:20 - 16:40
16:40 XAS of tailored nanoscale transition metal oxides - Carolin Schmitz-Antoniak (Technische Hochschule Wildau)
XAS of tailored nanoscale transition metal oxides
- Carolin Schmitz-Antoniak (Technische Hochschule Wildau)
16:40 - 17:20
Chair: Danny Thonig
17:20 Many-body quantum sign structures - Andrey Bagrov (Radboud University)
Many-body quantum sign structures
- Andrey Bagrov (Radboud University)
17:20 - 17:40
17:40 Ab-initio approach for laser-induced domain wall dynamics - Mohamed Elhanoty (Uppsala University)
Ab-initio approach for laser-induced domain wall dynamics
- Mohamed Elhanoty (Uppsala University)
17:40 - 18:00
18:00 Topological magnetism in B20 multilayers from first principles - Vladislav Borisov (Uppsala University)
Topological magnetism in B20 multilayers from first principles
- Vladislav Borisov (Uppsala University)
18:00 - 18:20
18:20 Phase-Space methods for Fermi-Hubbard model - François Rousse (Uppsala University)
Phase-Space methods for Fermi-Hubbard model
- François Rousse (Uppsala University)
18:20 - 18:40
18:40 Dinner
Dinner
18:40 - 19:40
19:40 Fun wildlife presentation - Biplab Sanyal (Uppsala University)
Fun wildlife presentation
- Biplab Sanyal (Uppsala University)
19:40 - 20:00
Sunday, 4 February 2024

08:00 Breakfast
Breakfast
08:00 - 09:00
09:00 Magnetic textures and spin dynamics in low-dimensional materials - Anna Delin (KTH Royal Institute of Technology)
Magnetic textures and spin dynamics in low-dimensional materials
- Anna Delin (KTH Royal Institute of Technology)
09:00 - 09:40
Chair: Hugo Strand
09:40 Structure-driven topological phase transition in a quasi-1D ferromagnetic Weyl semi-metal - Chin Shen Ong (Uppsala University)
Structure-driven topological phase transition in a quasi-1D ferromagnetic Weyl semi-metal
- Chin Shen Ong (Uppsala University)
09:40 - 10:20
10:20 Dynamical correlations and order in twisted bilayer graphene - Gautam Rai (University of Hamburg)
Dynamical correlations and order in twisted bilayer graphene
- Gautam Rai (University of Hamburg)
10:20 - 10:40
10:40 Fika
Fika
10:40 - 11:00
11:00 Superconductivity in the pressurized nickelate La3Ni2O7 in the vicinity of a BEC-BCS crossover - Henning Schloemer (University of Munich)
Superconductivity in the pressurized nickelate La3Ni2O7 in the vicinity of a BEC-BCS crossover
- Henning Schloemer (University of Munich)
11:00 - 11:40
Abstract: Ever since the discovery of high-temperature superconductivity in cuprates, gaining microscopic insights into the nature of pairing in strongly correlated, repulsively interacting fermionic systems has remained one of the greatest challenges in modern condensed matter physics. Following recent experiments reporting superconductivity in the bilayer nickelate La3Ni2O7 (LNO) with remarkably high critical temperatures of Tc = 80 K, it has been argued that the low-energy physics of LNO can be described by a strongly correlated, bilayer t-J model. In this talk, I present our recent investigations of this bilayer system, where we utilize density matrix renormalization group techniques to establish a thorough understanding of the model and the magnetically induced pairing through comparison to the perturbative limit of dominating inter-layer spin couplings. In particular, this allows us to explain appearing finite-size effects, firmly establishing the existence of long-range pairing order in the thermodynamic limit. As the effective model in the perturbative limit is known to show linear resistivity above the superconducting transition temperature, we propose a pair-based interpretation of the extended strange metal phase observed in LNO. By analyzing binding energies, we predict a BEC-BCS crossover as a function of the Hamiltonian parameters, whereas LNO is anticipated to lie on the BCS side in vicinity of the transition. Lastly, I discuss how binding energies in the system are of the order of the inter-layer coupling, which suggest strikingly high critical temperatures of the Berezinskii-Kosterlitz-Thouless transition and raise the question whether nickelate superconductors possibly facilitate critical temperatures above room temperature.
11:40 Plasmons in spatially inhomogeneous 2d media: semiclassical results and perspectives - Koen Reijnders (Radboud University)
Plasmons in spatially inhomogeneous 2d media: semiclassical results and perspectives
- Koen Reijnders (Radboud University)
11:40 - 12:00
12:00 Lunch
Lunch
12:00 - 13:00

13:00 Free time
Free time
13:00 - 15:00

15:00 Discussion 2
Discussion 2
15:00 - 16:20

16:20 Fika
Fika
16:20 - 16:40
16:40 MAX IV, opportunities for strongly correlated materials - Aymeric Robert (MAX IV Laboratory)
MAX IV, opportunities for strongly correlated materials
- Aymeric Robert (MAX IV Laboratory)
16:40 - 17:20
Chair: Andrey Bagrov
17:20 Effect of magnetic excitations on electron dynamics in the vicinity of the Mott transition - Evgeny Stepanov (Ecole Polytechnique)
Effect of magnetic excitations on electron dynamics in the vicinity of the Mott transition
- Evgeny Stepanov (Ecole Polytechnique)
17:20 - 17:40
17:40 Non-local spin and lattice damping from first principles - Danny Thonig (Örebro University)
Non-local spin and lattice damping from first principles
- Danny Thonig (Örebro University)
17:40 - 18:00
18:00 Charge-density waves in transition metal dichalcogenides - Erik van Loon (Lund University)
Charge-density waves in transition metal dichalcogenides
- Erik van Loon (Lund University)
18:00 - 18:20
18:20 Dinner
Dinner
18:20 - 19:20